TORO Network Radio Link

Troubleshooting Guide

The Network Radio Link Kit consists of 3 main parts, (1) the Maxon Radio (2) the Radio InterfacePCB and (3) the Universal Modem. The following paragraph outlines the general function of thethree components and will be discussed in detail on the following pages.

The Maxon Radio receives and transmits communication data between the Central ComputerInterface and the Field Satellite.

The Radio Interface PCB performs 3 functions, (1) provides power to the Maxon Radio (2)provides power to the radio side of the Universal Modem and (3) serves as an interface for Rxand Tx communication data between the radio and the Universal Modem/Timing Mechanism.

The Universal Modem relays the Rx and Tx communication data to and from the TimingMechanism. Note: The Universal Modem receives 12 VDC power from two sources. The RadioInterface PCB supplies 12 VDC with an analog ground to the radio side of the modem. I will call itRadio Side. The TM supplies 12 VDC with a digital ground to other components on the modem,including the relay that opens the modem for communication. I will call it TM Side. Both sourcesmust be present for the Universal Modem to communicate.

Maxon Radio Radio Interface PCB

Universal Modem

Maxon Radio Programming Guide

The Maxon radio used in the Radio Link Kit is a 16 channel programmable radio configuredfor narrowband communication. The pre-programmed radio is shipped in a standard configurationset on Channel #1 with a frequency of 453.9625. Other channels and frequencies can be used bychanging dip switch settings inside the radio. Default settings from the factory are shown below.

Channel Freq. SW 1 SW 2 SW 3 SW 4

1 453.9625 OFF OFF OFF OFF2 461.5000 OFF OFF OFF ON3 461.5875 OFF OFF ON OFF4 462.7625 OFF OFF ON ON5 462.8875 OFF ON OFF OFF6 462.9125 OFF ON OFF ON7 463.2125 OFF ON ON OFF8 463.3750 OFF ON ON ON9 463.6125 ON OFF OFF OFF

10 463.6375 ON OFF OFF ON11 464.5000 ON OFF ON OFF12 464.5500 ON OFF ON ON13 464.8000 ON ON OFF OFF14 469.5000 ON ON OFF ON15 469.8000 ON ON ON OFF16 open ON ON ON ON

Dip Switches

Radio Interface PCB

1 13 VAC incoming power from the Distribution Board across the red andwhite wires.

2 This cable is used to supply 13 VAC and 24 VAC to the rear DistributionBoard on Network LTC+ satellites with station counts higher than 32.

3 This nine pin cable connects the Maxon Radio to the Radio Interface PCBand serves two functions. (1) The Radio Interface PCB rectifies the 13VAC into 12 VDC to power the radio. Pins 4 and 5 supply the 12 VDC tothe radio with pin 4 being the ground. (2) The Tx and Rx communicationdata from the radio is carried across this cable with Tx using pin 1, Rxusing pin 2, PTT is pin 3 and squelch pin 6.

4 The RJ-45 cable also serves the same two functions as above, but in thiscase to the Universal Modem. (1) Pins 3 and 4 supply the 12 VDC to theradio side of the Universal Modem with pin 4 being the ground. (2) Pin 5carries the Tx communication data, pin 7 carries the Rx communicationdata, pin 6 is the PTT and pin 8 is the squelch. The cable is a straightthrough cable so checking for continuity is easily accomplished. The pinnumbers are located under the RJ-45 connector on the Radio InterfacePCB.

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2

3

4

Radio Interface PCB continued….

1 13 VAC IN LED: When illuminated indicates 13 VAC from the DistributionBoard across the red and white wires.

2 12 VDC LED: When illuminated indicates 12 VDC rectified by the RadioInterface PCB.

3 This component is an inline fuse on the 12 VDC circuit.

4 12 VDC FUSED LED: When illuminated indicates the fuse is in goodcondition on the 12 VDC circuit. If the LED is out the fuse is probablyblown. The Universal Modem and the Maxon Radio will not get the 12VDC required to operate properly.

5 DATA Rx LED: This should only illuminate when radio communicationdata is being transmitted on the Rx line. If it is stuck on there is a problemwith the radio, most likely the carrier detect not properly set. Radioreplacement will be necessary. Note: The Maxon Radio used withNetwork Radio Link is not interchangeable with the Sentinel radio. Thecarrier detect (Rx side) and the deviation (Tx side) are different.

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2

45

3

Universal Modem

1 Check to see if the jumper between pin A and pin B has been installed.

2 RJ-45 cable connecting from the Radio Interface PCB. This cable carries the 12VDC to the radio side of the Universal Modem on pins 3 and 4 with pin 4 being theground. The Tx communication data on pin 5, the Rx communication data on pin 7,the PTT on pin 6 and squelch on pin 8.

3 25 pin to 16 pin Modem Cable connecting from the Timing Mechanism. This cableserves 2 functions (1) Supplies 12 VDC to the Universal Modem (TM Sidecomponents) including the relay and (2) Provides a path for Rx and Txcommunication data.

Modem cable continuity tests: 12 VDC = pin 17 modem side, pin 9 TM sideRx = pin 3 modem side, pin 12 TM side Tx = pin 2 modem side, pin 14 TM side

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23

25 pin Modem side

Top Row = 1-13Bottom Row = 14 - 25

16 pin TM side

Top Row = 1-15 oddBottom Row = 2-16 evenTab determines top

The LTC Plus radio kit is designed to equip the LTC Plus satellite with radiocommunication interface. With the radio kit, LTC Plus satellites can be controlledremotely using a radio from the central. This instruction will guide you through all thenecessary steps for proper and complete installation.

NOTE: The following installation requirements must be accomplished before theradio kit can be operated.

• A site survey must be performed by an authorized Toro representative todetermine the narrow-band radio frequency and antenna type that is bestsuited for the location.

• An FCC narrow-band radio license is required by federal law and must be ineffect prior to radio operation. It is the responsibility of the equipment end-user to acquire, maintain and renew this license.

• The LTC Plus radio module must be programmed with the appropriatefrequency by an authorized Toro representative.

• The lead tone in SitePro® must be changed from 0.50 seconds (default) to0.75 seconds.

Installation ProcedureStep 1 - Unlock and open the satellite pedestal cover. Remove the pedestal front

panel to access the power supply and place the power supply switch to OFF.

Step 2 - Remove the vent cover from the pedestal cover by unscrewing the twomounting screws located underneath. See Figure 1.

Step 3 - Slide the external antenna cable through one of the vent holes in thepedestal cover. Position the external antenna on top of the pedestal coverand secure it with the two mounting screws that were removed from thevent cover. See Figure 2.

CAUTION: Severe electro-static discharge (ESD) can render the satelliteTiming Mechanism (TM) and radio assembly defective and inoperable.Place one hand on the metal bracket of the satellite to ground yourselfbefore handling the TM and the radio assembly.

Step 4 - Remove the two mounting screws that secure the TM assembly to theplastic pedestal. See Figure 3.

Step 5 - Lift the TM assembly and remove one of the D-shaped knockout locatedon the upper left and right sides of the TM support plate. If the supportplate does not have a knockout, use a wire cutter to cut a V-shaped notchfor the antenna cable to pass through. See Figure 4.

Step 6 - If the TM assembly is equipped with a standard modem, locate andremove it from the assembly. You may choose to retain the modem at thelocation but make sure that the data and power cables are removed fromthe standard modem sockets. See Figure 5.

Figure 1

Figure 2

Figure 3

Figure 4

NETWORK LTC® Plus Radio KitPlastic Pedestal Installation Instructions

Figure 5

Step 7 - Locate the pre-tapped 1/4" screw hole at the left side of the satellitecabinet.

Step 8 - Install the radio assembly to the cabinet using the provided 1/4"screw. See Figure 6.

Step 9 - Locate the pins labeled A, B, C, D and E on the universal modemmodule. See Figure 7. Verify that a jumper between A and B exist.Without the jumper, the universal modem module will not functionproperly.

Step 10 - Connect the 25 to 16-pin plug to the universal modem and TMassembly. See Figure 8 label “A”.

Step 11 - Plug the RJ-45 cable (Figure 8 label “B”) to the universal modemmodule RJ-45 socket. Route and connect the other end of the cableto the rear PCB radio assembly RJ-45 socket. See Figure 10label “B”.

Step 12 - Connect the universal modem communication cable (Figure 8 label“C”) and the ground cable (Figure 8 label “D”). If the satellite isequipped with a standard modem, use the existing communicationand ground cables. Otherwise, use the provided cable. Route thedata cable from the pump PCB and connect the ground wire to theground post. See Figure 9 label “C” and “D”.

Step 13 - Connect the 4-wire cable assembly to the J2 socket of the satellitefront distribution board. See Figure 8 label “E”. Connect the otherend of the cable assembly to the J2 socket of the rear PCB of theradio assembly. See Figure 10 label “E”.

Step 14 - For satellites with more than 32 stations, connect the other 4-wirecable assembly to the J1 socket of the rear radio assembly PCBand to the P2 socket of the satellite rear Distribution board. SeeFigure 10 label “F”.

Step 15 - Connect the data cable to the radio receiver and route the other endto the rear PCB of the radio assembly. See Figure 10 label “G”.

Step 16 - Connect the antenna cable to the radio receiver. See Figure 11.

Step 17 - Position the antenna cable in the TM support plate notch andreinstall the TM assembly to the satellite with the two mountingscrews.

Step 18 - Secure the antenna cable to the wire support of the pedestal coverusing the provided wire tie. Allow enough antenna cable loop for thedoor to fully open. See Figure 12.

Step 19 - Place the satellite power switch back to ON and replace the satellitefront panel cover.

Step 20 - Test the satellite and radio for proper operation.

Figure 6 Figure 7

Figure 9

Figure 10(Rear View)

(Front View)

(Front View)

A

B

B

E

E

C

C

D

D

G

F

Figure 11

Figure 12

Figure 8

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